Hinge pin door stop



FIG. 1 is a perspective view of a hinge pin door stop showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a first side view thereof; and,

FIG. 5 is a second side view thereof. 

The ornamental design for a hinge pin door stop, as shown and described. 